Download file encrypted.txt yang diberikan picoctf

Buka file nya dan analisa

Gunakan table rotation untuk menemukan flag

a b c d e f g h i j k l m n o p q r s t u v w x y z

s T u v w x y z a b c d e F g h i j k l m n o p q r

Contoh isi file xqkwKBN{z0bib1wv_l3kzgxb3l_429in00n}

Maka hasilnya picoCTF{r0tat1on_d3crypt3d_429af00f}


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